X + Y + Z =6. X+3y + Z=8. 2x + y + z=8. X-Z=???? tolong jawab yaa...

x + y + z = 6
x + 3y + z = 8
2x + y + z = 8

#pakai cara mengira saja :v

x = 2
y = 1
z = 3

x + y + z = 6
2 + 1 + 3 = 6

x + 3y + z = 8
2 + 3(1) + 3 = 8

2x + y + z = 8
2(2) + 1 + 3 = 8

x - z = ???
2 - 3 = -1
#sory kalo salah ya de, udah lupa